The first way
Get on the subway 1 line (Shanghai South Railway Station) and get off at 1 1 station (Shanghai Station). Walk for about 3 minutes to the transfer point 185 (Hengfeng Road Station, Shanghai Station) and get off at 12 station (Shanghai University Station).
Second ways
Get on Metro Line 3 (Shanghai South Railway Station), take 10 and get off at (Zhenping Road Station), walk for about 2 minutes to the transfer point, then get on Metro Line 7 (Zhenping Road Station) and get off at (Shanghai University Station) by 9 stops.
Personally, I suggest the second way. The fastest and most timely means of transportation in Shanghai is the subway. Don't look for 767B, it's not easy to find and it's a waste of time. The best way to travel in Shanghai is to choose the subway.